OCR Unit 1: Fundamentals of IT

  • Created by: KSemaj
  • Created on: 01-05-18 20:24
What are the uses of Bluetooth devices? (LO1)
The use of bluetooth devices are to connect devices together (1.1)
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What are the uses of infrared devices? (LO1)
They transfer data quickly, through a wireless technology; it also needs to be in line of sight (1.1)
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What are the uses of Wi-Fi devices? (LO1)
To transmit signals through radio waves (e.g. Smartphones or routers) (1.1)
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What is the purpose of the CPU? (LO1)
To process data. To do this, it executes the sequence of stored instructions known as a program. (1.2)
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What is the purpose of the RAM (LO1)
It stores program instructions being CURRENTLY used on the computer (1.2)
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What is the purpose of the ROM? (LO1)
It stores the start-up instructions for the computer, which can be known as the BIOS, to start the computer/server up. (1.2)
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What is the purpose of Cache memory? (LO1)
It stores frequently-used data. (1.2)
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What is the purpose of the motherboard? (LO1)
The purpose of it is to connect most of the components together in the computer (1.2)
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What is the purpose of the Fibre Channel? (LO1)
It connects computer data storage to servers. (1.2)
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What is the purpose of a SATA cable? (LO1)
It connects storage devices to the motherboard (e.g. Hard Disk Drive) (1.2)
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What is Quantum Computing? (LO1)
Quantum computing processes both the 1 and the 0 at the same time, that is called Superposition. It then becomes Entanglement, where they all correlate together. It compresses data, and deals with large, complex data. It requires more cooling. (1.3)
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What is the purpose of a mainframe? (LO1)
The purpose is to store bulk amounts of data. (1.3)
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What connections are coaxial cables used for? (LO1)
Television Aerials (1.3)
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What is the difference between an UTP (Unshielded Twisted Pair) and a STP (Shielded Twisted Pair)? (LO1)
The STP has a pair shield which helps block out elecromagnetic interference (1.4)
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What are the uses of Fibre Optic cables? (LO1)
The uses are for data transfer, including Fibre to Cabinet and Fibre to Property (1.4)
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Name the 4 compartments of a copper wire (LO1)
They are a conductor, a pair, an insulator and a sheath (1.4)
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What is the function of a Wireless Technology? (LO1)
To connect devices wirelessly (1.4)
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What is the purpose of a hub? (LO1)
They connect multiple devices to a network (1.5)
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What is the purpose of a switch? (LO1)
The purpose is to connect multiple computers together in a LAN (1.5)
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What is the purpose of a modem? (LO1)
The purpose is to convert analogue signals into digital signals. It can also convert the other way as well. (1.5)
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What is the metric order of measurements? (LO1)
Metric (1,000 of each): Bit, Nibble, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte (1.7)
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What is the binary order of measurements? (LO1)
Binary (1,024 of each): Bit, Nibble, Byte, Kibibyte, Mebibyte, Gibibyte, Tibibyte (1.7)
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How do you convert from Decimal to Hexadecimal? (LO1)
Divide the number by 16. Multiply the remainder by 16 and use that as the remainder e.g. 3 R2. Divide the new integer by 16, if it's lower than 1, use the original number (3) so you would get 32. (1.9)
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How to convert from Hexadecimal to Decimal? (LO1)
Multiply the first digit by 16. (3F would be 3 x 16 = 48) Then add the remaining digit, if it is a letter, convert it to a number (F= 15) so 48 + 15 would be 63 in Decimal. (1.9)
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What is the use of open source software? (LO2)
The open source software is used for editing, inspecting and adding when the source code is open. (2.1)
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What is the use of closed source software? (LO2)
The use of closed source software is used purely for its purpose. The source code is closed and you cannot modify it in any way. (2.1)
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What is the use of Off-The-Shelf software? (LO2)
It is ready-made software that requires a license fee to buy it. Only design modifications can be done (2.1)
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What is the use of Bespoke Software? (LO2)
It is specifically designed for you/your company. It is expensive to have created and can take up to multiple years to develop. (2.1)
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What is the use of Shareware? (LO2)
The type is used to mainly give to users, which can try the piece of software for 30-60 days which they can choose to buy or uninstall it. The developer is the only one with the rights (2.1)
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What is the use of Freeware? (LO2)
It is software available for free, however payment may be required to update it. An example of this is Skype (2.1)
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What is Productivity Software used for? (LO2)
It is used for producing information, generally editing, adding or deleting (2.2)
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Name 3 Development Tools; 3 out of the answers mentioned (LO2)
Compilers, Debuggers, Translators, IDE's (Integrated Design Environment) (2.2)
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What are the benefits of using business software? (LO2)
It uses automation processes which saves time. The software can help growth of a business. (2.2)
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What are the limitations of using business software? (LO2)
It can be affected by human error fed into the system. The business may end up being completely dependent on the software. (2.2)
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What is the purpose of Utility software? (LO2)
The purpose is to manage, maintain or configure a computer. (2.3)
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Name 4 types of Utility software; from the answers mentioned (LO2)
Anti-Virus, Backup Software, Cryptographic Utilities, Disk Compression, Disk Checkers, Disk Cleaners, Disk Space Analysers (2.3)
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Name the two types of operating system in terms of users. (LO2)
Single User; One user at a time. Multi-User; Multiple users at a time. (2.4)
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Name the two types of operating system in terms of processor (LO2)
Single-Processor; One task at a time. Mutli-Processor; Multiple programs can be operating simultaneously (2.4)
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Give a benefit of using a Bespoke operating system from answers mentioned? (LO2)
It is tailor-made. It can have additional security. It has personal updates and support. It can prioritise tasks efficiently. (2.4)
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Give a limitation of using a Bespoke operating system from answers mentioned? (LO2)
It has a high upfront cost. It has a sacrifice of time and energy.
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Name 3 common faults that could occur within software from answers mentioned? (LO2)
System Freeze, Blue Screen of Death, Software error (Poor Coding), Updates if not applied, unusual behaviour and general software failure. (2.6)
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Give 3 troubleshooting procedures you could use to troubleshoot faulty software, from answers mentioned? (LO2)
Logging the problem, Installing third-party tools, Check if it's plugged in, Internet connectivity, Reinstalling software if necessary (2.6)
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Name the types of software documentation? (LO2)
User Documentation and Technical Documentation (2.6)
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Give two protocols that deal with email transfer and their function.
SMTP (Simple Mail Transfer Protocol); Used to send emails across servers. POP3 (Post Office Protocol); Used to recieve and hold emails for recieiving users. (2.7)
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What does TCP and IP stand for and their functions? (LO2)
Transmission Control Protocol; Responsible for establishing a connection between two computers. Internet Protocol; Responsible for data being sent across the internet, makes sure it is secure (2.7)
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What is the purpose of a hypervisor? (LO3)
The purpose is to run multiple guest machines on the same host system. It also separates servers (File & Print) (3.1)
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What is the purpose of a File server? (LO3)
The purpose of this server is to deal with files and data within the files (3.1)
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What is the purpose of a Print server? (LO3)
The purpose of this server is to deal with printers and the connection between the device and the printer. (3.1)
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What is the purpose of an Application server? (LO3)
The purpose of this server is to deal with the applications and how they operate (3.1)
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What is the purpose of a Database server? (LO3)
The purpose of this server is to deal with the database and to constrict the data only to that database server. (3.1)
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Other cards in this set

Card 2

Front

What are the uses of infrared devices? (LO1)

Back

They transfer data quickly, through a wireless technology; it also needs to be in line of sight (1.1)

Card 3

Front

What are the uses of Wi-Fi devices? (LO1)

Back

Preview of the front of card 3

Card 4

Front

What is the purpose of the CPU? (LO1)

Back

Preview of the front of card 4

Card 5

Front

What is the purpose of the RAM (LO1)

Back

Preview of the front of card 5
View more cards

Comments

Opalmieri

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<3

(^@^)~

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This resource is great well done James ;)

da second best twin

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                                                        INCREDIBLE!!!!!!

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